INCRA Precision Specialty Corner Rules 6'' x 3'' X-Y Marker | Rockler Woodworking and Hardware
4 PCS Pro T-Rule Set, 6 Inch Precision Marking T Ruler Compatible Pencil with 0.5 mm Mechanical Pencil Refill, 6 Inch Woodworking Bend Ruler for Carpenter Designer Architect Engineer - Amazon.com
TAIMIMEI T-RULE Precision Marking 3/6/12 Inch Stainless Steel Woodworking Marking Scribing Line Carpenter Square Measuring Tool - AliExpress
INCRA Precision Tiny T-Rules - 3" - Shop PMC - Known as The Festool Superstore